FreeCalypso > hg > freecalypso-tools
annotate uptools/libcoding/grokdcs.c @ 411:8b8e723f5699
INSTALL: updates regarding the ARM7 gcc toolchain
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Oct 2018 18:40:10 +0000 |
parents | 097ce8431d11 |
children |
rev | line source |
---|---|
335
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /* |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 * This library module implements the function that distills the complex |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * set of possible SMS DCS octet values to just one of 4 possibilities: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 * 7-bit text (7), 8-bit data octets (8), UCS-2 text (16) or compressed |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 * data (9). |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 * |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 * The decoding is based on the 3GPP TS 23.038 V11.0.0 spec; |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 * reserved encodings are treated as 7-bit text as the spec instructs. |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 */ |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 sms_dcs_classify(dcs) |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 { |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 if (!(dcs & 0x80)) { |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 if (dcs & 0x20) |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 return(9); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 switch (dcs & 0xC) { |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 case 0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 return(7); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 case 4: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 return(8); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 case 8: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 return(16); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 default: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 /* reserved, treating as 7-bit per the spec */ |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 return(7); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 } |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 } |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 switch (dcs & 0xF0) { |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 case 0x80: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 case 0x90: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 case 0xA0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 case 0xB0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 /* reserved, treating as 7-bit per the spec */ |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 return(7); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 case 0xC0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 case 0xD0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 return(7); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 case 0xE0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 return(16); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 case 0xF0: |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
41 if (dcs & 4) |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
42 return(8); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
43 else |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
44 return(7); |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
45 } |
097ce8431d11
uptools/libcoding: SMS DCS decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
46 } |